嵌入式系统架构 e》 Hardware Independent Software Applications I/O System RTOS libraries TCP/IP Stack File System RTOS Kernel Hardware Abstraction Layer BSP&Device Driver SCSI Flash MMU Cache Serial Ethernet Device Driver Driver Driver Driver Driver Driver Drivers Hardware llxx@ustc.edu.cn 10/94Hardware Independent Software Applications TCP/IP Stack I/O System RTOS libraries File System RTOS Kernel 嵌入式系统架构 llxx@ustc.edu.cn 10/94 Hardware Abstraction Layer ：BSP&Device BSP&Device Driver SCSI Driver Flash Driver MMU Driver Cache Driver Serial Driver Ethernet Driver Device Drivers Hardware